Home / 20,612,610.63-28,456,446.20-15,892,697.45

Finding the Fourth Proportional to 20,612,610.63, 28,456,446.20 and 15,892,697.45

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Solution

The fourth proportional to 20,612,610.63, 28,456,446.20 and 15,892,697.45 is: 21,940,437.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,610.63 : 28,456,446.20 = 15,892,697.45 : x
  2. Step 2: Convert to fraction form
    20,612,610.63/28,456,446.20 = 15,892,697.45/x
  3. Step 3: Cross multiply
    20,612,610.63x = 28,456,446.20 × 15,892,697.45
  4. Step 4: Simplify right side
    20,612,610.63x = 452,249,689,879,338.69
  5. Step 5: Solve for x
    x = 452,249,689,879,338.69/20,612,610.63
  6. Step 6: Final answer
    x = 21,940,437.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.